Komatsu 830E-AC Shop Manual page 1035

SYSTEM CHECKOUT
To check system operation (not including timer), pro-
ceed as follows:
1. Start the engine.
2. Actuate the test switch at the reservoir/pump
assembly.
3. The motor and pump should operate until the
system attains 17,237 kPa (2500 psi).
4. Once the required pressure is achieved, the
pump motor should turn off and the system
should vent.
5. Check for pump, hose or injector damage or
leakage with the system under pressure.
6. After checking system, stop the engine.
Observing normal precautions regarding high
voltage present in the propulsion system before
attempting to repair lube system.
Lubrication Controller Check
Pressing the manual lube button on the enclosure
cover will initiate a lube event. (See Figure 3-7).
Lubrication Controller Operation
The time between lube events is determined by the
setting of the rotary switch, which selects the
numeral setting, and the dip switch, which selects the
units in either minutes or hours.
Lubrication Controller Components
Mode switch (2, Figure 3-7) consists of four dip
switches. The first dip switch controls the maximum
amount of "on time", either 30 seconds or 120 sec-
onds.
The second dip switch controls the mode, either
timer mode or controller mode. When the switch is
set to the timer mode, the amount of time that the
pump is on will be determined by the setting of the
dip switch (30 seconds or 120 seconds). When the
switch is set to the controller mode, a pressure
switch must be installed in the lube supply line. The
pressure switch will detect supply line pressure, and
will reset the timer at a set pressure. If the pump fails
to reach the set pressure within the dip switch setting
(30 seconds or 120 seconds), the controller will ini-
tiate an alarm.
The third dip switch is for selecting the units for the
"off time" to be used in conjunction with off time
switch (1). Hours or minutes may be selected.
P03030
The fourth dip switch is used to select "memory off"
or "memory on". When the switch is set to "memory
off", a lube cycle will occur each time power is turned
on. The lube cycle will start at the beginning of the on
time setting.
When the switch is set to "memory on", the controller
will function as follows:
1. When power is turned off during 'off time'
(between cycles), the lube cycle will resume at
the point of interruption after power is restored.
In other words, the controller will remember its
position in the cycle.
2. When power is turned off during 'on time' (dur-
ing a cycle), the controller will reset to the
beginning of the lube cycle after power is
restored.
Off time switch (1) is used to select units of time.
Possible time intervals are: 0.5, 1, 2, 4, 8, 15, 24 or
30. The mode switch determines whether the off time
units will be minutes or hours.
Cover (3) contains three LED windows and a manual
lube switch. The LEDs indicate system operation and
status. When power is on, a green LED will
illuminate. When the pump is on, another green LED
will illuminate. A red LED will illuminate when an
alarm condition occurs.
Lubrication Controller Adjustment
The lubrication controller is factory adjusted to the
following switch settings:
dip switch 1 - 120 seconds
dip switch 2 - timer
dip switch 3 - minutes
dip switch 4 - memory off
Rotary Switch - 15 minutes
Automatic Lubrication System P3-11